Sectional%20Views

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Forging new generations of engineers
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Sectional Views
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Types of Sectional Views

• Half
• Full
• Offset

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Half Section

• In a half section, one quarter of the part is cut
  away.
• The cutting plane line goes half-way through the
  object.
• This is done with symmetrical parts where you
  would like to show the outside, as well as the
  inside details.

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Half Section
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Half Section
Notice how the cutting plane line runs through
the center of the part there is no arrow head.

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Full Section

• The cutting plane passes fully through the
  object.
• In a full section, half of the object is cut away.

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Full Section
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Full Section
A full section is a view that shows what the
object looks like if it were cut in half.
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Full Section
A cutting plane line is used to indicate how the
front view was cut. It is also labeled in case
another section is necessary. The arrows should
point in the line of sight as you are looking
straight on at the section.
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Full Section
Section lines called Hatch lines are used to show
where the part is solid. This helps to see the
detail that would be normally blocked and only
shown as hidden lines.
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Offset Section

• Interior features not in line with each other can
  be shown in an offset section view.
• Note how the cutting plane line changes and
  follows the center of each feature.